<div>
  <ol>
    <li>After activating this snap tool, choose "Distance", "Percentage", or
    "Fraction" and enter the desired value in the options tool bar.</li>
    <img src="SnapDistanceManualOptions.png" class="figure" />
    <li>Specify the first point. That is the point to measure the distance
    from.</li>
    <li>Click the second point.</li>
  </ol>
  <br />
  <img src="SnapDistanceManualFigure.png" class="figure" />
</div>
